* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.container {
    position: absolute;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(to bottom, #2193b0, #6dd5ed);
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 50%;
    z-index: 1;
    border-top: 1px solid rgba(255, 255, 255, .5);
    /* 背景模糊 */
    backdrop-filter: blur(5px);
}

.container .color {
    position: absolute;
    /* 模糊滤镜 数值越大越模糊 */
    filter: blur(200px);
}

.container .color:nth-child(1) {
    background: #fd746c;
    width: 800px;
    height: 800px;
    top: -450px;
}

.container .color:nth-child(2) {
    background: #cf8bf3;
    width: 600px;
    height: 600px;
    bottom: -150px;
    left: 100px;
}

.container .color:nth-child(3) {
    background: #fdb99b;
    width: 400px;
    height: 400px;
    bottom: 50px;
    right: 100px;
}

ul {
    position: relative;
    display: flex;
    z-index: 2;
}

ul li {
    position: relative;
    list-style: none;
    margin: 10px;
}

ul li a {
    position: relative;
    width: 80px;
    height: 80px;
    display: inline-block;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, .4);
    border-right: 1px solid rgba(255, 255, 255, .2);
    border-bottom: 1px solid rgba(255, 255, 255, .2);
    box-shadow: 0 5px 45px rgba(0, 0, 0, .1);
    backdrop-filter: blur(2px);
    overflow: hidden;
    transition: all .5s;
}

ul li a:hover {
    transform: translateY(-20px);
}

/* 扫光动画 */
ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50px;
    height: 100%;
    background-color: #fff;
    transform: skewX(45deg) translateX(150px);
    transition: all .5s;
}

ul li a:hover::before {
    transform: skewX(45deg) translateX(-150px);
}